Gas-burner.



F. KRAU SS.

GAS BURNER.

APPLICATION FILED NOV; 3, 1914.

1,127,455, Patented Feb. 9, 1915.

cam/11044,

THE NORRIS PETERS 60.. PHOTO-LITHOH WASHINGTON D. c.

'iUlTill EED %TATE% PATENT FRIEDRICH KRAUSS, OF MUNICH, GERMANY.

GAS-BURNER.

mamas.

Application filed November 3, 1914.

To all whom it may concern:

Be it known that I, FRIEDRICH KnAUss, citizen of Austria, residing at Munich, Bavaria, Germany, have invented certain new and useful Improvements in Gas-Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The use of combustible gas mixed with oxygen, for obtaining high illuminating power, is in general highly etiicient, but is in some cases associated with certain disad- *antages. For example, in connection with automobile search lights, the regulations in some districts prohibit the use of oxygen burners for incandescent lighting, whereas in other districts such burners are allowed. Ordinary oxygen burners are, moreover, useless when no supply of oxygen can be obtained.

The object of this invention is to provide a combination burner, which can be used alternatively with ordinary fuel gas and with such gas mixed with oxygen, the change from one to the other being simply made by turning the oxygen supply on and off.

The invention is illustrated in the accompanying drawing, showing one form of construction.

In the drawing a designates a container shown in section, divided into two conipartments by a transverse flexible partition or diaphragm b. The upper compartment, into which the combustible gas is fed through a conduit d, has two outlets e, f; the outlet 6 leads to a conduit m, which 'carries a steatite burner 7; and the other outlet leads to the mixing pipe Z of the oxygen burner n.

Between the outlets e and 7 there is disposed inside the container a double armed lever h, pivoted at g, carrying on its arms two cone valves 0 and 7, whereby it can alternatively close the orifices e and f. A spring a normally holds the lever in the position, shown in the drawing, closing the outlet 7", so that the gas can flow to the steatite Specification of Letters Patent.

Patented Feb. Q, 1915,.

Serial No. 870,056.

burner 70. The lower compartment of the container is connected to a supply pipe 0 and a discharge pipe 0 for the oxygen. The pipe 0 enters the mixing pipe Z above the orifice 7.

When oxygen is introduced through the pipe 0 into the lower compartment of the container a at a pressure exceeding that of the combustible gas, the diaphragm bulges upward and acts on the lever it, so that the pressure of the spring a on the one lever arm is overcome and the orifice e is closed by the valve 6 At the same time the other lever arm is lowered, and opens the orifice 7, so that the combustible gas is drawn through that orifice by the suction of the oxygen and enters the mixing pipe through which it flows to the burner a. Assuming that gas has been burning at the burner 70, the flame at this burner will be extinguished, but will first ignite the mixture of combustible gas and oxygen at the burner n.

It the supply of oxygen is cut off, the diaphragm returns to its normal position, and so does the lever h under the influence of the spring 2, so that the outlet orifice 6 leading to the steatite burner 70 will be opened again, and the outlet orifice 7 leading to the mixing pipe Z will be closed, the flame at the burner a will be extinguished, but previously ignites the gas issuing from the steatite burner. An incandescence body 6 is supported adjacent to the two burners.

lVhat I claim as my invention and desire to secure by Letters Patent of the United States is A gas burner, comprising a container, a transverse flexible diaphragm dividing said container into a gas-supply chamber and an oxygen supply chamber, a burner tube having one of its ends opening into said gassupply chamber and a burner tip on the opposite end thereof, a mixing tube having one of its ends opening into said gas-supply chamber and a burner tip on the opposite end thereof, an incandescent body independent of both said burner tips and in position to be rendered incandescent by the outflow from said second named burner tip, and

valve mechanism in the gas-supp1y chamber In testimony whereof I hereunto aflix my under control of sold diaphragm normally signature in the presence of two Witnesses.

closing communication between said gas su ly'chamber and said mixing tube, and FRIEDRICH KRAUSS' 5 maintaining open communication between Witnesses:

said gas-supply chamber and said burner VICTOR GUGGENBERGER, tube. WASHINGTON SPIEGELBERG.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents,

wasliingtcn, D. C. 

